Siberian Pine is the most amazing timber of all soft wood timbers for accepting impregnation. Siberian Pine is nearly as good as Siberian Larch at resisting the weather and decay/rot once it is treated. All our Cabins / Log Cabins are double-glazed from wall thickness 34mm. Tilt and Turn are available from 44mm and upwards. All our timber is from Government Control forestry, which all have FSC accreditation. Please feel free to send an email to us at anytime to ask any question you may have.